Slow Cooker Neiman Marcus Chicken Casserole

This Slow Cooker Neiman Marcus Chicken Casserole has tender chicken, cheddar, bacon and scallions in a rich, creamy sauce, finished with a buttery cornflake topping. It’s my slow-cooker version of the popular comfort-food casserole, and it’s an easy family dinner made mostly with pantry and refrigerator staples.

I made this one night when I had chicken to use but no dinner plan. I already had nearly everything in the house, and I replaced the traditional buttery cracker topping with cornflake crumbs. The slow cooker handles the chicken and creamy filling, and an optional few minutes under the broiler gives the topping a crisp, golden finish.

If you love easy comfort-food dinners, try my Slow Cooker Ritz Chicken next.

Why Is It Called Neiman Marcus Chicken Casserole?

Most versions are baked and include Ritz crackers and sliced almonds. My version is adapted for the slow cooker, leaves out the almonds and uses cornflake crumbs for the topping.

Neiman Marcus chicken casserole became popular as a rich combination of chicken, cream of chicken soup, sour cream, cheddar, bacon, scallions and a buttery cracker topping. It is commonly described as being inspired by food served at a Neiman Marcus café, although I could not find a definitive original recipe published by Neiman Marcus.

Recipe inspiration: My starting point was All recipes. I adapted it for the slow cooker, omitted the almonds and used cornflake crumbs instead of Ritz crackers.

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Why You’ll Love This Slow Cooker Neiman Marcus Chicken Casserole

• Dump-and-go — just mix everything together and let the slow cooker do the work
• Cheesy and creamy with sour cream or Greek yogurt for balance
• Bacon and scallions add a little luxury to pantry ingredients
• Family favorite — it’s rich, comforting, and kid-approved
• Crunchy baked topping for the perfect contrast of textures

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Ingredients

Casserole Base:

• 1½–2 pounds boneless, skinless chicken breasts, cut into bite-size pieces
• 2 cups shredded cheddar chees
• 3 scallions, thinly sliced
• 1 (10.5-ounce) can cream of chicken soup
• 1 cup sour cream or Greek yogurt
• 1/2 teaspoon hot sauce
• 6 oz cooked chopped bacon
• Salt and pepper to taste

Topping:

• 1 stick (½ cup) butter, melted
• 1 ½ cups cornflake crumbs

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Instructions

1. Mix the casserole base:
   In the slow cooker, combine chicken chunks, cheddar cheese, scallions, cream of chicken soup, hot sauce, sour cream (or Greek yogurt), chopped bacon, salt, and pepper. Stir well to coat everything evenly.
2. Make the topping:
   In a small bowl, stir melted butter into the cornflake crumbs until they’re evenly coated.

3. Top and bake:
Spread the buttery cornflake topping evenly over the casserole mixture.
Cook on High for 2 hours or Low for 3–4 hours, until the chicken is fully cooked through (165°F).

4. Optional oven finish:
For an extra golden crust, transfer the slow cooker insert (if oven-safe) or the casserole into a baking dish and broil for 3–5 minutes until crispy and lightly browned on top.

5. Serve:
Spoon over rice or enjoy with steamed broccoli or green beans for a comforting, balanced meal.

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For more cozy dinner inspiration, browse my Easy Fall Chicken Recipes

Storage & Make-Ahead Tips

• Refrigerate: Store leftovers in an airtight container for up to 4 days.
• Reheat: Warm in the oven at 350°F for 15 minutes or microwave individual portions.
• Freeze: Cool completely, then freeze in an airtight container for up to 2 months. Thaw overnight in the fridge before reheating.
• Make ahead: Mix the base up to a day in advance, store covered in the fridge, and add the topping right before slow cooking.

What Makes This Slow Cooker Neiman Marcus Chicken So Creamy?

The creamy base comes from cream of chicken soup, sour cream or Greek yogurt, shredded cheddar cheese, and bacon. As everything cooks together in the slow cooker, the chicken becomes tender and the sauce turns rich and creamy.

The scallions and hot sauce add extra flavor, while the cheddar and bacon make this feel like true comfort food without needing a separate homemade sauce.

What Makes the Cornflake Topping So Good?

Traditional Neiman Marcus Chicken Casserole is often made with Ritz crackers and almonds, but I use buttery cornflake crumbs instead.

Honestly, I originally made the swap because that’s what I already had in the house — and it worked so well that I kept it. The cornflake crumbs get crisp and golden and give the creamy chicken underneath the perfect little bit of crunch.

How Do You Keep the Cornflake Topping Crispy?

Mix the cornflake crumbs with melted butter before adding them to the casserole.

The slow cooker will soften the topping slightly as it cooks, so if you want it extra golden and crisp, transfer the finished casserole to an oven-safe dish and broil it for about 3–5 minutes before serving. That optional broil is already part of your recipe and is worth highlighting because it gives you the best texture.

Frequently Asked Questions

Can I Use Chicken Thighs Instead of Chicken Breasts?

Yes. Boneless, skinless chicken thighs work really well in this recipe and tend to stay especially tender in the slow cooker.

One reader actually made this with chicken thighs and gave it a 5-star review, so we know that substitution works well here.

What Can I Use Instead of Cornflake Crumbs?

I use buttery cornflake crumbs because that’s what I had on hand when I first made this version, and I loved the crispy texture they added.

If you don’t have cornflake crumbs, crushed Ritz crackers would be the closest substitute and are commonly used in more traditional versions of Neiman Marcus Chicken Casserole.

Can I Use Greek Yogurt Instead of Sour Cream?

Yes. I use either sour cream or Greek yogurt in this recipe.

Sour cream makes the casserole a little richer, while Greek yogurt still gives you a creamy sauce with a bit more tang.

Can I Make Slow Cooker Neiman Marcus Chicken Casserole Ahead of Time?

Yes. Mix the casserole base together up to a day ahead and store it covered in the refrigerator.

I recommend waiting to add the buttery cornflake topping until you’re ready to cook so it keeps as much texture as possible.

Can You Freeze Neiman Marcus Chicken Casserole?

Yes. Let the casserole cool completely, then store it in an airtight freezer-safe container for up to 2 months.

Thaw it overnight in the refrigerator before reheating. A reader also reported using this recipe for meal prep and said it froze and reheated really well.

Another creamy slow-cooker favorite is my Mexican Street Corn Chicken Casserole.

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